Protein Hook homolog 1 - Q8BIL5 (HOOK1_MOUSE)

Protein Feature View of PDB entries mapped to a UniProtKB sequence

Required for spermatid differentiation. Probably involved in the positioning of the microtubules of the manchette and the flagellum in relation to the membrane skeleton (PubMed:12075009). Component of the FTS/Hook/FHIP complex (FHF complex). The FHF complex may function to promote vesicle trafficking and/or fusion via the homotypic vesicular protein sorting complex (the HOPS complex).
UniProt

Self-associates (By similarity). Component of the FTS/Hook/FHIP complex (FHF complex), composed of AKTIP/FTS, FAM160A2, and one or more members of the Hook family of proteins HOOK1, HOOK2, and HOOK3 (By similarity). May interact directly with AKTIP/FTS, HOOK2 and HOOK3 (By similarity). Associates with several subunits of the homotypic vesicular sorting complex (the HOPS complex) including VPS16, VPS18, VPS39 and VPS41; these interactions may be indirect (By similarity). Interacts with CCDC181 (PubMed:28283191). Interacts (via coiled-coil region) with RIMBP3 (via C-terminus) (PubMed:19091768). Interacts with LRGUK (via guanylate kinase-like domain) (PubMed:28003339). Interacts with microtubules.
UniProt

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Validation Track